662 



INDEX 



trigeminal nerve, 156 

 Myliobatiforms, 144 

 Myliobatus, 36 



brain histology, 142 



canal system, 348-349 



cerebellum, 136 



Narcine, 54 



Narke, 68, 76 



Nassau grouper (see Epinephelus) 



Natal, 548-550, 553, 556-557, 561 



Necturus 



cupula, 340 



hair cells, 341, 343, 345 

 Negaprion, 4, 14-17, 28, 30, 31, 36, 45, 

 49, 52, 54, 57, 82, 90, 123 



behavior, 201 



bioelectric behavior, 512 



brain, 234 



chemoreceptor, 251 



ERG, 68, 69 



feeding behavior, 234 



flicker, 76 



locomotor patterns, 316, 318-319 



olfactory stimuli, 283 



orientation behavior, 288 



pineal organ, 88 



receptor potential, 69 



retina, 49, 52, 54, 57, 208 



serum lipids, 631 



sound attraction, 394 



sound spectrum, 395 



spectral sensitivity, 77, 86 



tectum, 167, 203, 208 



tubocurarine, 234 



visual pigments, 66 

 neko shark (see Heterodontus) 

 neurology, 197-198, 208 

 nictitating membrane, 12-15 

 nongaleoid sharks, 575-576 

 Notorynchus 



amygdala, 179 



brain histology, 134-135 



dorsal pallium, 177-178 



tectum, 169 



telencephalon, 180-181 

 nurse sharks (see Ginglymostoma) 



ocular adnexa, 12-16 

 ocular lens, 40-46 

 Odontaspis 



migration, 559-560 

 nursery areas, 578 

 size distribution, 561 



olfaction, 270-289, 302-318 



circus movements, 286 



food procurement, 284 



searching swim patterns, 286 

 olfaction— gustatory relationship, 285 

 olfaction— flow relationship, 302-318 

 olfactory bulb, 175, 232-233, 238, 283 



evoked potentials, 232-233, 283 



histology, 278 



mitral cells, 278, 280 



structure, 278, 280-281 

 olfactory cells, bipolar, 278 

 olfactory corridor, 311 

 olfactory epithelium, 257, 259, 270-272, 



274, 276, 283 

 olfactory organ, sacs, 270-271 

 olfactory receptors, 228, 272 

 Oncorhynchus 



electrophysiological techniques, 233 



haemoglobins, 541 

 operculum pup Mare, 30, 34, 35 

 optic tectum, experimental data, 124, 



184, 205-206 

 optic tract, 219 

 Orectolobus, 53 

 orientation, 250, 286-294, 315, 406-409 



electro-orientation, 508, 518 



geomagnetic experiments, 508, 517- 

 518, 520-522, 525 



magnetic field, 508 

 Oxynotus, 31 



pallium, experimental data, 185 



Paratrygon, 54 



Pardachirus, natural shark repellent, 602- 



603 

 Petromyzon 



olfactory attraction, 294 



olfactory orientation, 301 

 pineal organ, 87-89 

 Platypoecilus, 537 

 Platyrhina, 68 

 Platyrhinoidis, 27 



bioelectric behavior, 512 



brain histology, 125, 132, 141 



dorsal pallium, 177 



hypothalamus, 173 



tectum, 169 



telencephalon, 146, 180 



thalamus, 165 

 Pleuronectes, feeding responses, 510 

 Plotosus, receptor cells, 503 

 Poloumordwinoff ending, 333, 335-336 

 Port Jackson sharks, 4 

 Potamotrygon, 50l-5O3 



